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Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500
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Aschool had an election where the candidates received votes in the ratio 1: 2: 3. if the winning candidate received 210 votes, how many total people voted in the election?
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Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2
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60 (x + 20) 3x what is the value of x?...
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